Paper-polishing machine.



No. 734,666. 7 PATENTED JULY 2.8, 1903, L. W. CASE.

PAPER POLISHING MACHINE.

APPLI OATION FILED NQV. 21,- 1902.

N9 MODEL. a sums-sum! 1.

. Hui-734,666. PATENTED JULY 2a, 1903.

L. w. CASE.

PAPER- POLISHING MACHINE. APPLIOATION FILED H0121, 1902.

H0 MODEL. 3 SHEETS-SHEET 2.-

THE uonms Purim cn. wcwommm wAsumsToN, 0v :2.

No. 734,666. f PATENTED JULY 28. 1903.

' L. W. 0ASE.

PAPER POLISHING MACHINE.

APPLIOATIOH II'L'ED NOV. 21, 1902. K0 MODQL. 3 SiIEETS-SHEBT 3.

W-Hmwwa n-az Qonms prrzn-s cc Pn'noumor, WASHINGTON. D. c

UNITED STATESQ PATENT Patented July 28, 1903.

FFICE.

LAWRENOEW. CASE, .OF HIGHLAND PARK, CONNECTICUT.

PAPE R -POLISH ING MACHINE.

SPECIFICATION forming part of Letters Patent 0. 734,666, dated July 28,1903.

Application filed llovember 21,1902. Serial No. 132,251. (No model.)

To all whom it mrty concern.-

Be it known that I, LAWRENCE W.-CAsE, a citizen of the United States,residingat Highland Park, in the county of Hartford and State ofOonnecticut,'have invented certain new and useful Improvements inPaper-Polishing Machines, of which the following is a specification. I

This invention relates to a machine for polishing paper by means of thefriction of a moving glassing-stone that is forced against the surfaceof the paper with suitable pressure. n

The object is'to provide a simple machine of this nature which willpolish a continuous web of paper of any width or thickness rapidly,uniformly, and efficiently.

The embodiment of the invention that is illustrated has anadjustablebed, glassingstones that are adapted to berevolved upon the uppersurface of the bed, and means for advancing a web of paper on the bedbeneath the stones.

. chines.

v Figure 1 of the accompanying drawings shows a frontelevation of one ofthese ma- Fig. 2 shows a side elevation with the roll of paper and thepaper-feeding mechanismomitted; and Fig. 3is a plan, on slightly smallerscale, of the machine.

The bed 1, which is an annular metal plate, is supported upon posts 2.The upper ends of the posts extend into socketsin the under side of thebed and the lower ends of the.

tated simultaneously and move the bed up 1 the source of power.

or down. uniformly when the hand-wheel is turned.

p A frame 7, that rises from the base, has bearings holding a verticalshaft 8. On this shaft, the axis of which is in line with the axis ofthe bed and the large gear, is a driving-pulley 9, that is adapted to bebelted to When' the" roller and between the feed-rollers.

Projecting radially from a hub on the lower endof the shaft just a abovethe bed are a number of arms 10. The

machine shown has four of these arms; but any suitable number may beused.

In. one side of the outer end of each arm there is a T-shaped slot 11,and held to the side of each Held to each of these blocks by aclampstance. When the nuts are loosened, the

blocks are movable along the arms for the purpose of adjusting thestones. At one side of the machine, supported by a suitable frame, aretwo feed-rollers 15, that have intermeshing gears 16 at one end of theirshafts, so as to rotate together.

The pressure of these rollers against each other is regulated byhand-screws 17. At one end of one feed-roller shaft is a worm-wheel 18,

meshing with a worm 19 on a vertical shaft 20, that has a pulley 21,that is connected with a pulley 22 on the vertical shaft 8 by a belt 23.

An idler-roller 24 and a tension-roller 25 are supported by the framenear the feedrollers.

The paper 26, which may be press-board or any other stock that it isdesired to polish by friction, is rolled upon an arbor 27, that is laidacross a frame at the side of the machine opposite the feed-rollers. Anidler-roller 28 is laid across the frame at this side adjacent to theroll of paper.

The paper is led from the roll over the idlerroller, across the top ofthe bed beneath the glassing-stones, and over the idler-roller at theopposite side, then under the tension- The paper is drawn slowly acrossthe bed by this mechanism when the machine is in operation, and at thesame time the glassing-stones are caused to revolve about the axis ofthe bed,

so as to rub the entire surface of the paper. These stories are adjustedalong the arms, so that each will form a track for itselfthat is, allare not adjusted equal distances fromthe axis of revolution. As thestones are revolved upon the upper surface of the paper the handwheel isturned to lift the bed and determine the pressure. of the stones uponthe paper. The stones make complete revolutions and the paper isadvanced slowly, so the entire surface of the paper is subjected totherubbing of the stones many times.

This invention provides a machine having glassing-stones, which revolvesmoothly and bear heavily upon the paper to be polished. This effectivemachine is simple to build, easy to operate, and quick to adjust.

I claim as my invention 1. A machine for polishing paper having a bed, ashaft supported over the bed, arms rotatably supported by the shaft overthe bed, glassing-stones attached to the arms, and mechanism for feedingpaper between the bed and the stones, substantially as specified.

2. A machine for polishing paper having a bed, means for raising andlowering the bed, arms rotatably supported above the bed, glassingstonesattached to the arms, and means for feeding paper between the bed andthe stones, substantially as specified.

3. A machine for polishing paper having a bed supported by threadedposts, pinions and a gear for rotating the posts simultaneously, armsrotatably supported above the bed, glassing stones attached to the arms,and means for feeding paper between the bed-and the stones,substantially as specified.

4. A machine for polishing paper having a bed, a shaft supported overthe bed, arms rotatably supported by the shaft over the bed, glassing:stones adjustable radially of the shaft along the arms, and mechanismfor feed ing paper between the bed and the stones, substantially asspecified.

5. A machine for polishing paper having a bed, means for raising andlowering the bed, a shaft supported over the bed, arms rotatablysupported by the shaft over the bed, g1 assing-stones adjustableradially of the shaft along the arms, and mechanism for feeding paperbetween the bed and the stones, substantially as specified.

6. A machine for polishing paper having a bed, a shaft supported overthe bed, a glassing-stone suspended above and adjacent to the face ofthe bed and adapted to be revolved by the rotation of the shaft,mechanism for rotating the shaft, and mechanism for feeding paperbetween the bed and the stone, substantially as specified.

LAWRENCE W. CASE.

Witnesses:

H. R. WILLIAMS, ETHEL M. LOWE.

